Q.

I) CuSO4 + 5H2O → CuSO4 . 5H2OII) PCl3 + 3H2O → H3PO3 + 3HCl.The processes I and II are respectively

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a

Hydration and dehydration

b

Hydration and Hydrolysis

c

Hydrolysis and Hydrolysis

d

Hydration and hydration.

answer is B.

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Detailed Solution

Hydrolysis : The addition of watermolecules to the compound in the form H+ & OH- ions is acalled Hydrolysis.(or)PCl3 + 3H2O → H3PO3 + 3HClHydration : The addition of watermolecules to the salt without cleavage is said to be hydration.CuSO4 + 5H2O → CuSO4.5H2OTherefore, PCl3 undergoes hydrolysis, Whereas CuSO4 involves in hydration process.
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